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Link backup method and apparatus for computer network

A technology of computer network and link backup, applied in the field of computer network, can solve the problems of easy damage of wired lines, difficult to restore, high cost and inconvenience, and achieves the effect of small investment, convenient expansion and large coverage.

Inactive Publication Date: 2008-09-10
BELLNET TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a method and device for link backup of a computer network to solve the problems that existing wired links are easy to be damaged and difficult to restore, and the cost is high and inconvenient to maintain.

Method used

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  • Link backup method and apparatus for computer network
  • Link backup method and apparatus for computer network
  • Link backup method and apparatus for computer network

Examples

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Embodiment Construction

[0037] Specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0038] figure 2 Shown is a block diagram of the internal structure of the wireless link backup device of the present invention.

[0039] The wireless link backup device is used to receive information such as data packets of LAN users, and send the data packets to the INTERNET; monitor whether the wired WAN port is working normally, and switch the main link to wireless backup when the wired WAN port cannot work normally link; when the wired WAN port returns to normal, switch the wireless backup link to the main link and start the wired WAN port.

[0040] The wireless link backup device includes a wireless WAN card unit 11 , a spanning tree bridge unit 12 , a LAN Ethernet controller 13 , a wireless network card unit 14 , a network address translation NAT unit 15 , and a WAN Ethernet controller 16 .

[0041] Network address translation NAT unit:...

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Abstract

This invention discloses a kind of backup method for computer network links. It concludes: (1) the wireless links alternate device judges whether wired WAN links are normal operated. If they are, the links backup will stop. If they are not, the step (2) will be carried out; (2) the said wireless links alternate device switches wired links into wireless links. Wireless WAN port is started; (3) wireless WAN port accesses internet. In addition, this invention also discloses a kind of corresponding backup apparatus for computer network links. It avoids the questions that backup links are east to destroy, hard to recover and inconvenient to repair when using wired links to backup.

Description

technical field [0001] The invention relates to a computer network, in particular to a method for realizing link backup of the computer network, and also relates to a device for realizing link backup. Background technique [0002] At present, the computer network, especially the Internet (Internet), has become an indispensable communication tool in people's daily life. In a computer network, in order to ensure that users can still transmit data through the link after the main link fails, it is necessary to set up a backup link, which is called link backup. A common way to implement link backup is to apply for an additional link. Under normal circumstances, one link is working as the main link, and the other is in standby mode as the backup link. When the main link fails, it will automatically switch to the backup link to ensure that the user's business is not interrupted. [0003] figure 1 Shown is a schematic diagram of implementing link backup in the prior art. figure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/28
Inventor 石磊
Owner BELLNET TECH
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